High density polyethylene, the English name is "High Density Polyethylene", referred to as "HDPE". HDPE is a thermoplastic polyolefin formed by copolymerization of ethylene. Although HDPE was introduced in 1956, the plastic has not yet reached maturity. This versatile material is constantly developing its new uses and markets.
Main characteristics
The unique characteristics of various grades of HDPE are the appropriate combination of four basic variables: density, molecular weight, molecular weight distribution, and additives. Different catalysts are used to produce custom specialty polymer. These variables combine to produce HDPE grades for different applications; achieving the best balance in performance.
Product performance
High density polyethylene is a non-toxic, odorless, odorless white granule with a melting point of about 130 ° C and a relative density of 0.941 to 0.960. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties and environmental stress crack resistance are also good.
Packaging and storage hnsot
Keep away from fire and heat during storage. Keep clean and tidy in the warehouse. Do not mix any impurities. It is strictly prohibited to be exposed to sunlight or rain. Transportation should be stored in a clean, dry, covered compartment or cabin, with no sharp objects such as nails. It is strictly forbidden to mix with organic solvents such as flammable aromatic hydrocarbons and halogenated hydrocarbons.
recycle and re-use
HDPE is the fastest growing segment of the plastics recycling market. This is mainly due to its ease of rework, minimal degradation characteristics and its extensive use in packaging applications. The main recycling is to reprocess 25% of the recycled materials, such as post-consumer recycled (PCR), with pure HDPE to make bottles that are not in contact with food.
PE pipe for water supply is a replacement for traditional steel pipe and polychloroic acid ethylene drinking water pipe.
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